Weaknesses
The Fletcher checksum cannot distinguish between blocks of all 0 bits and blocks of all 1 bits. For example, if a 16-bit block in the data word changes from 0x0000 to 0xFFFF, the Fletcher-32 checksum remains the same. This also means a sequence of all 00 bytes has the same checksum as a sequence (of the same size) of all FF bytes.
Read more about this topic: Fletcher's Checksum
Famous quotes containing the word weaknesses:
“To “give style” to one’s character—a rare and noble art! Those practice it who compass all that their natures present as strengths and weaknesses and then fit them into an artistic plan until every one appears as art and reason and even weakness enchants the eye.”
—Friedrich Nietzsche (1844–1900)
“One of the weaknesses in the cooperative is that it has never been sufficiently leavened by the imagination. This is a quick-silver faculty, and likely to be a cause of worry to any collective settlement.”
—Edward Dahlberg (1900–1977)
“My strengths make me contemptuous. My weaknesses make me charitable.”
—Mason Cooley (b. 1927)